WO1993021800A1 - Ameliorations apportees a des amenagements de siege assurant un support lombaire reglable - Google Patents

Ameliorations apportees a des amenagements de siege assurant un support lombaire reglable Download PDF

Info

Publication number
WO1993021800A1
WO1993021800A1 PCT/GB1993/000866 GB9300866W WO9321800A1 WO 1993021800 A1 WO1993021800 A1 WO 1993021800A1 GB 9300866 W GB9300866 W GB 9300866W WO 9321800 A1 WO9321800 A1 WO 9321800A1
Authority
WO
WIPO (PCT)
Prior art keywords
platform element
platform
seat back
frame structure
seat
Prior art date
Application number
PCT/GB1993/000866
Other languages
English (en)
Inventor
Eric Maeyaert
Original Assignee
Bubb, Antony, John, Allen
Youngflex S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bubb, Antony, John, Allen, Youngflex S.A. filed Critical Bubb, Antony, John, Allen
Priority to EP93909396A priority Critical patent/EP0618774B1/fr
Priority to DE69312470T priority patent/DE69312470T2/de
Priority to US08/170,322 priority patent/US5474358A/en
Priority to AU40220/93A priority patent/AU664274B2/en
Publication of WO1993021800A1 publication Critical patent/WO1993021800A1/fr
Priority to NO934838A priority patent/NO934838L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces
    • B60N2/6671—Lumbar supports having flexible support member bowed by applied forces with cable actuators
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/462—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
    • A47C7/465—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means by pulling an elastic cable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/666—Lumbar supports vertically adjustable

Definitions

  • This invention concerns improvements in and relating to seat arrangements providing adjustable lumbar support.
  • Such an arrangement is particularly adapted to a seat structure for use in an automobile, bus, minibus, train, office or furniture seat of the kind wherein a platform element providing support for the upholstery of the seat is resiliently suspended in a seat frame.
  • an assembly for incorporation in a seat back to provide adjustable lumbar support may comprise a platform element adapted to be suspended in a seat frame to support the cushioning of a seat rest, said platform element including two elongate lateral rails between which extend transverse members that provide the platform support, adjustable means being linked between respective portions of each of said elongate rails to apply thereto a force of longitudinal compression, whereby said rails are caused to be arched outwardly in the lumbar region of the back rest together with the transverse members carried thereby.
  • Such an arrangement provides an adjustable and comfortable lumbar support which is of relatively simple design. It has the disadvantage, however, that although the degree of lumbar support can be readily adjusted in the horizontal direction, the vertical position at which lumbar support is provided is determined by the initial geometric shape of the . platform element and the points at which the compression forces are applied to the lateral rails, so that it is impossible for an occupant of the seat to adjust the lumbar support in a vertical direction to meet individual requirements.
  • the invention accordingly provides a seat back comprising a frame structure from which is resiliently suspended a platform element for supporting upholstery of the seat, said platform element being linked to a first adjusting means for applying a force of longitudinal compression between points of the platform element spaced in a vertical direction, in order to cause resilience buckling of the platform element to arch outwardly in the lumbar region of the back rest, and said platform element being linked to a second adjusting means for effecting vertical displacement of said platform element relatively to the said frame structure.
  • the said second adjusting means is coupled between the frame structure and a lower margin of the said platform element in such a manner that the said lower margin is fixed in its vertically adjusted position.
  • Such an arrangement not only enables the construction of the second adjusting means to be mechanically simple, but also improves the effectiveness of the horizontal lumbar adjustment, since it reduces the tendency of the resiliently suspended platform element to become horizontally displaced to a greater extent by load on the seat back, when the platform element is arched to provide greater lumbar support.
  • the platform element providing the adjustable lumbar support may be supplemented by a second resiliently suspended platform element located in the upper region of the bac:-: rest, the arrangement being such that the further platform element provides support for the upper horizontal margin of the first platform element, whilst accommodating relative sliding motion of the first platform element under the influence of the second adjusting means.
  • the platform element or platform elements may advantageously be of the kind comprising a wire grid, wherein transverse supporting wires are tensioned between lateral rails that are in turn coupled to the frame structure by tension springs.
  • Figure 1 is a front elevation of a back rest of a vehicle seat incorporating an arrangement in accordance with the invention.
  • Figure 2 is a side elevation of a platform assembly of the arrangement illustrated in Fig. 1, and Figure 3 is an enlarged fragmentary view of a part of Fig. 2.
  • the reference numeral 1 illustrates the frame of a seat back for an automobile seat.
  • the seat is illustrated with the upholstery removed, and, suspended within the frame 1 by means of tension springs illustrated in broken lines at 2, are transversely extending platform elements 3 and 4 that provide support for the upholstery of the seat.
  • each of the platform elements comprises a wire grid consisting of lateral rails 5 or 6 formed by steel cords that are paper-wrapped.or coated with synthetic plastics material, between which are tensioned transverse wires 7 or 8 penetrating intermediate tubes 9 or 10 of- synthetic plastics material.
  • transverse wires 7 or 8 are shown in full lines in the drawings, the positions of the remaining wires being indicated in broken lines.
  • a sub frame 11 of formed wire is secured to the side rails 5 of the platform element 3 by means of clips 12.
  • the sub frame 11 is formed to include- U-shaped loops 13, within which are anchored synthetic plastics blocks 14 forming ferrules for the connection of a pair of Bowden cables 15 and 16 respectively.
  • a further sub frame 17 of formed wire is anchored to the lower ends of the rails 5 of the platform element 3 by means of clips 18.
  • the Bowden cables 15 and 16 are linked to a common actuating mechanism 19 mounted on the frame 1, and inner cables 15A and 16A of the Bowden cables 15 and 16 are anchored at their ends to hooked portions 17A of the sub frame 17.
  • a centre section 17B of the sub frame 17 forms a bottom rail for the platform element 3 and is linked by means of clips 20 to a cranked shaft 21, as indicated more clearly in Fig. 3.
  • the shaft 21 is pivoted in the frame 1 about an axis 22 (Fig. 3) and can be pivoted to an arc indicated by the arrow 23 in Fig. 3 via a lever 24 coupled to a manual actuating means 25 located in the frame 1, by means of a connecting rod 26.
  • the upper ends of the two lateral rails 5 have portions 5A bent at right angles and are clipped together by means of a clip 27 to form an upper horizontal margin of the platform element 3.
  • the lower ends of the rails 6 are turned inwards at an acute angle at 6A and resr upon an appropriate transverse wire 8 in order to provide support for the portions 5A forming the upper margin of the platform element 3.
  • the upper ends of the rails 6 are hooked at 6B (Fig. 2) and engage in apertures in a flange (not illustrated) of the frame 1.
  • the two sub frames 11 and 17 are drawn together by tension exerted between the loops 14 and the hooked portions 17A, so that an intermediate portion 3A (Fig. 2) of the sub frame 3 is caused to arch outwardly in order to adjust the horizontal position of the lumbar support provided by the platform 3.
  • the platform element 3 will tend to return to its original condition, under the influence of the tension springs 2, its own inherent resilence, and load upon the seat.
  • the cranked shaft 21 can be rotated to raise or lower the position of the lower margins 17B of the platform element 3.
  • the vertical position of the lumbar support provided by the portion 3A of the platform element 3 can thus be correspondingly adjusted.
  • Vertical movement of the platform element 3 is accommodated by corresponding movement of the tension springs 2 and by flexing of the Bowden cables 15 and 16.
  • the upper margin of the platform element 3 slides upon the rails 6,6A of the upper platform element 4, the, preferably, plastics coating of the steel cords serving to reduce friction and avoid the generation of noise.
  • the arrangement provides a simple and effective means of obtaining both horizontal and vertical adjustment of lumbar support.
  • the fact that the platform element 3 is adjustably located in a fixed position at its lower margin 17B enables a simple lever actuated adjustment mechanism to be adopted whilst also providing for positive location of the arched lumbar support in the horizontal direction, so that the tendency for the lower edge of the platform element 3 to be displaced under load is eliminated.
  • the provision of the additional platform element 4,fixed at its upper end avoids disturbance of the position of the upholstery in the upper section of the seat back as the vertical position of the platform element 3 is adjusted, whilst also enabling a more consistent spring suspension of the upper margin of the platform element 3 through a vertical range of movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Toilet Supplies (AREA)

Abstract

Un dossier de siège comprend une structure cadre (1) à laquelle sont suspendus de manière élastique un premier élément plate-forme (3) et un second élément plate-forme (4) qui forment ensemble un support pour le rembourrage du siège. Le premier élément plate-forme (3) peut être courbé pour assurer un support lombaire horizontal réglable. De plus, le bord inférieur de l'élément plate-forme (3) est couplé à un vilebrequin (1) qui peut tourner de manière orientable afin de varier la position verticale de l'élément plate-forme (3) dans la structure cadre (1). Lors de cette mise au point, le bord supérieur de l'élément plate-forme (3) glisse sur des rails latéraux (6, 6A) de l'élément plate-forme supérieur (4).
PCT/GB1993/000866 1992-04-29 1993-04-26 Ameliorations apportees a des amenagements de siege assurant un support lombaire reglable WO1993021800A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP93909396A EP0618774B1 (fr) 1992-04-29 1993-04-26 Ameliorations apportees a des amenagements de siege assurant un support lombaire reglable
DE69312470T DE69312470T2 (de) 1992-04-29 1993-04-26 Sitzanordnung mit verbesserter verstellbarer lendenstütze
US08/170,322 US5474358A (en) 1992-04-29 1993-04-26 Seat arrangements providing adjustable lumbar support
AU40220/93A AU664274B2 (en) 1992-04-29 1993-04-26 Improvements in and relating to seat arrangements providing adjustable lumbar support
NO934838A NO934838L (no) 1992-04-29 1993-12-27 Forbedringer ved, og relatert til setearrangementer som justerbar lumbalstötte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929209229A GB9209229D0 (en) 1992-04-29 1992-04-29 Improvements in and relating to seat arrangements providing adjustable lumbar support
GB9209229.5 1992-04-29

Publications (1)

Publication Number Publication Date
WO1993021800A1 true WO1993021800A1 (fr) 1993-11-11

Family

ID=10714720

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000866 WO1993021800A1 (fr) 1992-04-29 1993-04-26 Ameliorations apportees a des amenagements de siege assurant un support lombaire reglable

Country Status (10)

Country Link
US (1) US5474358A (fr)
EP (1) EP0618774B1 (fr)
AT (1) ATE155658T1 (fr)
AU (1) AU664274B2 (fr)
CA (1) CA2112251A1 (fr)
DE (1) DE69312470T2 (fr)
ES (1) ES2104145T3 (fr)
GB (1) GB9209229D0 (fr)
WO (1) WO1993021800A1 (fr)
ZA (1) ZA933020B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019123A1 (fr) * 1994-01-13 1995-07-20 Pullmaflex U.K. Ltd. Ameliorations relatives a des agencements de sieges assurant un soutien reglable
WO1996002166A1 (fr) * 1994-07-20 1996-02-01 Henderson's Industries Pty. Ltd. Ajustement d'un support lombaire
US5553919A (en) * 1994-10-11 1996-09-10 Excellence Lumbar Corporation Scissor jack lumbar support
GB2316604A (en) * 1996-08-23 1998-03-04 Youngflex Ag Seat suspension arrangement for lumbar support adjustment
GB2342287A (en) * 1998-10-02 2000-04-12 Youngflex Ag Improvements in or relating to seat suspension arrangements
WO2000020249A1 (fr) * 1998-10-02 2000-04-13 Youngflex A.G. Dispositif de suspension pour siege
US6837543B2 (en) * 2001-07-20 2005-01-04 Itw Automotive Products Gmbh & Co. Kg Seat, for automobiles or the like
US9604560B1 (en) 2015-11-13 2017-03-28 Kongsberg Automotive, Inc. Assembly for adjusting a lumbar region of a seat
US10427569B2 (en) 2015-01-26 2019-10-01 Kongsberg Automotive, Inc. Adjustment mechanism for a seat

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394829B (de) 1989-08-04 1992-06-25 Schuster Wilhelm Rueckenlehne fuer einen fahrzeugsitz, mit einer verstellbaren lendenstuetze
DE4320105C1 (de) 1993-06-17 1994-10-13 Ameu Management Corp Verstellvorrichtung für ein biegeelastisches Stützelement einer Rückenlehne
JP3537902B2 (ja) * 1995-03-15 2004-06-14 日本発条株式会社 座席装置
US5791733A (en) * 1996-02-09 1998-08-11 Knoll, Inc. Adjustable lumbar support
US6227618B1 (en) 1996-02-23 2001-05-08 Schukra Usa, Inc. Cable attachment for a lumbar support
US5984407A (en) * 1996-02-23 1999-11-16 Mccord Winn Textron Inc. Cable attachment for a lumbar support
EP0803400A3 (fr) * 1996-04-23 1998-12-09 Lear Corporation Siège de véhicule à support lombaire
US5911477A (en) * 1997-05-29 1999-06-15 L&P Property Management Company Lumbar support structure for automotive vehicle
US6220661B1 (en) 1999-04-19 2001-04-24 Steelcase Development Inc. Chair back and method of assembly
US6086153A (en) 1997-10-24 2000-07-11 Steelcase Inc. Chair with reclineable back and adjustable energy mechanism
DE19750116C2 (de) * 1997-11-13 2002-11-07 Faurecia Autositze Gmbh & Co Verstellmechanismus für die seitlichen Stützbereiche eines Sitzes, insbesondere von dessen Rückenlehne
US6062649A (en) * 1998-03-03 2000-05-16 Steelcase Development Inc. Chair back construction
USD419007S (en) * 1998-03-31 2000-01-18 Teknion Furniture Systems Inc. Back for a chair
US6053064A (en) * 1998-05-01 2000-04-25 L & P Property Management Company Lumbar support screw actuator
US6189972B1 (en) 1998-06-05 2001-02-20 Teknion Furniture Systems Inc. Lumbar support adjustment mechanism
JP4182592B2 (ja) * 1999-06-11 2008-11-19 マツダ株式会社 シートバック構造
DE10066017B4 (de) * 2000-06-19 2008-08-21 Fico Cables, Lda. Lordosenstütze
DE10041910C1 (de) * 2000-08-25 2002-01-24 Faurecia Autositze Gmbh & Co Rückenlehne oder Sitzteil eines Kraftfahrzeugsitzes
US6619739B2 (en) 2001-03-01 2003-09-16 L & P Property Management Company Universal ergonomic support with self-contained actuator
US6805405B2 (en) * 2001-03-19 2004-10-19 Sung Yong Co., Ltd. Chair equipped with lumbar support unit
US6758522B2 (en) * 2001-03-29 2004-07-06 L&P Property Management Company Apparatus and method for varying coefficients of friction in a variable apex back support
US6402246B1 (en) * 2001-04-11 2002-06-11 L&P Property Management Simplified strap lumbar support device
AU2002316699A1 (en) 2001-07-11 2003-01-29 Alfmeier Corporation Integrated adjustable lumbar support and trim attachment system
US7000986B2 (en) 2001-09-28 2006-02-21 Ficosa North America Lumbar support apparatus
CN100486837C (zh) 2001-10-11 2009-05-13 L&P产权管理公司 装有动力的腰部机构
US6652028B2 (en) 2001-11-02 2003-11-25 L & P Property Management Apparatus and method for lumbar support with variable apex
US6676214B2 (en) 2001-11-16 2004-01-13 L & P Property Management Company Method and apparatus for lumbar support with integrated actuator housing
US6652029B2 (en) 2001-12-20 2003-11-25 L & P Property Management Company Unitized back plate and lumbar support
US6908152B2 (en) 2001-12-14 2005-06-21 L & P Property Management Company Push lumbar support with flexible pressure surface
US6779844B2 (en) 2001-12-14 2004-08-24 L&P Propety Maqnagement Company Arching lumbar support with weight distribution surface
DE10220028B4 (de) * 2002-05-04 2011-07-28 Schwarzbich, Jörg, 33607 Sitzeinlage und Verfahren zu ihrer Herstellung
US6814407B2 (en) * 2002-06-05 2004-11-09 L & P Property Management Company Single actuator four-way power lumbar
US7090301B2 (en) * 2002-10-29 2006-08-15 L&P Property Management Company Apparatus and method for lumbar support structure
US6908153B2 (en) 2002-12-02 2005-06-21 L&P Property Management Company Power lumbar support cable apparatus and method
US6692074B1 (en) 2002-12-02 2004-02-17 L & P Property Management Company Apparatus and method for bi-directional cable adjustment of an ergonomic support
US7651163B2 (en) 2002-12-02 2010-01-26 Logicback, Inc. Lumbar support device
US7052087B2 (en) 2002-12-09 2006-05-30 L&P Property Management Company Method and apparatus for a scissors ergonomic support
EP1581409B1 (fr) * 2003-01-10 2010-07-07 Alfmeier Präzision Ag Baugruppen und Systemlösungen Dispositif de fixation pour appui-tete de siege de vehicule
US6905170B2 (en) 2003-01-22 2005-06-14 L & P Property Management Company Fold down seat lumbar support apparatus and method
ITMI20030446A1 (it) * 2003-03-11 2004-09-12 Resal S R L Struttura anatomica con telaio e lastra-cuscino convessa per gli schienale, poggiatesta e sedile di poltrone in genere, in specie per autoveicoli con regolazione manuale e motorizzata della convessita' e della posizione della lastra-cuscino.
WO2005078312A2 (fr) 2004-02-06 2005-08-25 L & P Property Management Company Mecanisme d'entrainement
US7252335B2 (en) * 2004-03-12 2007-08-07 L&P Property Management Company Lumbar with flexwires in cross
US7429082B2 (en) * 2004-03-19 2008-09-30 Alfmeier Prazision Ag Baugruppen Und Systemlosungen Vehicle seat with a pivotally installed headrest
EP1602527B1 (fr) 2004-05-14 2009-01-28 Alfmeier Präzision Ag Baugruppen und Systemlösungen Siège automobile avec un appui-tête
DE602005011627D1 (de) 2004-07-30 2009-01-22 L & P Property Management Co Modulare lumbalstützvorrichtung
US7549700B2 (en) * 2004-09-07 2009-06-23 Schukra Of North America Mechanism for thin seat lumbar
US20060178603A1 (en) * 2004-10-21 2006-08-10 Popescu Horatiu M Lumbar adjustable support integrated with massage system
ATE369770T1 (de) 2005-01-12 2007-09-15 L&P Swiss Holding Co Lendenstützvorrichtung und entsprechende sitzstruktur
EP1680983B1 (fr) 2005-01-12 2012-11-28 L&P Swiss Holding Company Structure de siège équipé d'une unité de couplage
PT1683442E (pt) * 2005-01-19 2008-01-23 L&P Swiss Holding Co Estrutura de suporte para um assento com uma função de mesa e correspondente disposição de suspensão de assento
DE102005015143A1 (de) * 2005-03-31 2006-10-05 Recaro Aircraft Seating Gmbh & Co. Kg Sitz, insbesondere Fluggastsitz
US20060226683A1 (en) * 2005-04-08 2006-10-12 Alfmeier Corporation Adjustable lumbar support with extensive configurability
US7862119B2 (en) 2005-04-08 2011-01-04 Alfmeier Prazision Ag Baugruppen Und Systemlosungen Vehicle seat with lordosis support
US7356744B2 (en) * 2005-05-12 2008-04-08 Pc-Doctor, Inc. Method and system for optimizing testing of memory stores
DE102005036774B4 (de) * 2005-08-04 2011-03-31 Schukra Gerätebau AG Lordosenstütze
US7309105B2 (en) * 2006-01-09 2007-12-18 L&P Property Management Company Lift wire lumbar
US7465282B2 (en) 2006-05-18 2008-12-16 Schukra Of North America, Ltd. Easy install hinge connection
US7614696B2 (en) 2006-12-11 2009-11-10 Schukra Of North America Lumbar system for climate seating
DE102007005737B4 (de) 2007-01-31 2010-06-10 Alfmeier Präzision AG Baugruppen und Systemlösungen Kopfstützensystem für einen Fahrzeugsitz
US7984949B2 (en) 2007-04-24 2011-07-26 Schukra Of North America Lumbar and bolster support for second row seat
CA2655083C (fr) 2008-02-22 2016-07-05 Schukra Of North America Soutien lombaire rabattable a pression constante
US8474909B2 (en) 2010-09-21 2013-07-02 La-Z-Boy Incorporated Power lift lumbar support system
JP7125241B2 (ja) * 2018-10-04 2022-08-24 トヨタ自動車株式会社 車両用シート
US10952535B2 (en) 2018-11-05 2021-03-23 La-Z-Boy Incorporated Furniture member having lumbar adjustment mechanism
US11324324B2 (en) 2018-11-05 2022-05-10 La-Z-Boy Incorporated Furniture member having lumbar adjustment mechanism
US11672348B2 (en) 2018-11-05 2023-06-13 La-Z-Boy Incorporated Furniture member having lumbar adjustment mechanism

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2013487A (en) * 1978-02-03 1979-08-15 Menacher P M R Backrest with Adjustable Lumbar Support
EP0169293A1 (fr) * 1983-01-27 1986-01-29 Be-Ge Stolindustri Ab Dossier pour siège avec appui dorsal ajustable

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756809A (en) * 1954-06-30 1956-07-31 Endresen Ernst Back support for chairs, car seats, and the like
SE449556B (sv) * 1983-11-09 1987-05-11 Volvo Ab Stol, exv bil-, tag- eller flygplansstol, innefattande ett i sitt ryggstod anordnat svankstod
US5217278A (en) * 1991-03-13 1993-06-08 Findlay Industries, Inc. Mechanism for providing adjustable lumbar support in a seat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2013487A (en) * 1978-02-03 1979-08-15 Menacher P M R Backrest with Adjustable Lumbar Support
EP0169293A1 (fr) * 1983-01-27 1986-01-29 Be-Ge Stolindustri Ab Dossier pour siège avec appui dorsal ajustable

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU681745B2 (en) * 1994-01-13 1997-09-04 Pullmaflex U.K. Ltd. Improvements in and relating to seat arrangements providing adjustable support
WO1995019123A1 (fr) * 1994-01-13 1995-07-20 Pullmaflex U.K. Ltd. Ameliorations relatives a des agencements de sieges assurant un soutien reglable
WO1996002166A1 (fr) * 1994-07-20 1996-02-01 Henderson's Industries Pty. Ltd. Ajustement d'un support lombaire
US5553919A (en) * 1994-10-11 1996-09-10 Excellence Lumbar Corporation Scissor jack lumbar support
US6152531A (en) * 1996-08-23 2000-11-28 Youngflex Ag Seat suspension arrangement and adjustment mechanism therefore
GB2316604A (en) * 1996-08-23 1998-03-04 Youngflex Ag Seat suspension arrangement for lumbar support adjustment
GB2316604B (en) * 1996-08-23 1998-10-14 Youngflex Ag Improved seat suspension arrangement and adjustment mechanism therefor
GB2342287A (en) * 1998-10-02 2000-04-12 Youngflex Ag Improvements in or relating to seat suspension arrangements
WO2000020249A1 (fr) * 1998-10-02 2000-04-13 Youngflex A.G. Dispositif de suspension pour siege
GB2342287B (en) * 1998-10-02 2001-04-18 Youngflex Ag Improvements in or relating to seat suspension arrangements
AU755453B2 (en) * 1998-10-02 2002-12-12 L & P Swiss Holding Company Seat suspension arrangements
US6601919B1 (en) 1998-10-02 2003-08-05 Youngflex Ag Seat suspension arrangements
US6837543B2 (en) * 2001-07-20 2005-01-04 Itw Automotive Products Gmbh & Co. Kg Seat, for automobiles or the like
US10427569B2 (en) 2015-01-26 2019-10-01 Kongsberg Automotive, Inc. Adjustment mechanism for a seat
US9604560B1 (en) 2015-11-13 2017-03-28 Kongsberg Automotive, Inc. Assembly for adjusting a lumbar region of a seat

Also Published As

Publication number Publication date
DE69312470T2 (de) 1997-11-06
ZA933020B (en) 1993-11-26
AU4022093A (en) 1993-11-29
CA2112251A1 (fr) 1993-11-11
ES2104145T3 (es) 1997-10-01
DE69312470D1 (de) 1997-08-28
ATE155658T1 (de) 1997-08-15
GB9209229D0 (en) 1992-06-17
AU664274B2 (en) 1995-11-09
US5474358A (en) 1995-12-12
EP0618774B1 (fr) 1997-07-23
EP0618774A1 (fr) 1994-10-12

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